2 files changed, 46 insertions, 20 deletions
diff --git a/adder-and-display/adder-and-display.srcs/sources_1/bin2bcd.vhd b/adder-and-display/adder-and-display.srcs/sources_1/bin2bcd.vhd
new file mode 100644
index 0000000..548c9e5
--- /dev/null
+++ b/adder-and-display/adder-and-display.srcs/sources_1/bin2bcd.vhd
@@ -0,0 +1,33 @@
+library IEEE;
+use IEEE.STD_LOGIC_1164.ALL;
+
+entity bin2bcd is port(
+	I: in std_logic_vector(4 downto 0);
+	X: out std_logic_vector(3 downto 0);
+	Y: out std_logic_vector(3 downto 0));
+end bin2bcd;
+
+architecture Behavioral of bin2bcd is
+begin
+	with I select
+		X <=
+			b"0000" when b"00000" | b"01010" | b"10100" | b"11110",
+			b"0001" when b"00001" | b"01011" | b"10101" | b"11111",
+			b"0010" when b"00010" | b"01100" | b"10110",
+			b"0011" when b"00011" | b"01101" | b"10111",
+			b"0100" when b"00100" | b"01110" | b"11000",
+			b"0101" when b"00101" | b"01111" | b"11001",
+			b"0110" when b"00110" | b"10000" | b"11010",
+			b"0111" when b"00111" | b"10001" | b"11011",
+			b"1000" when b"01000" | b"10010" | b"11100",
+			b"1001" when b"01001" | b"10011" | b"11101",
+			(others => '0') when others;
+	with I select
+		Y <=
+			b"0000" when b"00000" | b"00001" | b"00010" | b"00011" | b"00100" | b"00101" | b"00110" | b"00111" | b"01000" | b"01001",
+			b"0001" when b"01010" | b"01011" | b"01100" | b"01101" | b"01110" | b"01111" | b"10000" | b"10001" | b"10010" | b"10011",
+			b"0010" when b"10100" | b"10101" | b"10110" | b"10111" | b"11000" | b"11001" | b"11010" | b"11011" | b"11100" | b"11101",
+			b"0011" when b"11110" | b"11111",
+			(others => '0') when others;
+end Behavioral;
+
diff --git a/adder-and-display/adder-and-display.srcs/sources_1/main.vhd b/adder-and-display/adder-and-display.srcs/sources_1/main.vhd
index 6f6cb71..92e306e 100644
--- a/adder-and-display/adder-and-display.srcs/sources_1/main.vhd
+++ b/adder-and-display/adder-and-display.srcs/sources_1/main.vhd
@@ -38,7 +38,8 @@ architecture Behavioral of main is
 			DS: out std_logic_vector(3 downto 0));
 	end component;
 	signal X: std_logic_vector(3 downto 0); -- add out
-	signal Cout: std_logic; -- add carry out
+	signal Cout: std_logic; -- carry out
+	signal AOW: std_logic_vector(4 downto 0); -- add out wide (5-bit)
 	signal BCD0: std_logic_vector(3 downto 0); -- bcd 10^0
 	signal BCD1: std_logic_vector(3 downto 0); -- bcd 10^1
 	signal CLK_T: std_logic_vector(18 downto 0); -- clock counter for display clock
@@ -55,28 +56,20 @@ begin
 			B => B,
 			Cin => '0',
 			X => X,
-			Cout => open);
-	-- bcd: component bin2bcd
-	-- 	port map (
-	-- 		I => Cout & X,
-	-- 		X => BCD0,
-	-- 		Y => BCD1);
-	-- disp: component bcd2disp
-	-- 	port map (
-	-- 		CLK => CLK_T(19),
-	-- 		N0 => BCD0,
-	-- 		N1 => BCD1,
-	-- 		N2 => "0000",
-	-- 		N3 => "0000",
-	-- 		DD => DD,
-	-- 		DS => DS);
+			Cout => Cout);
+  AOW <= Cout & X;
+	bcd: component bin2bcd
+		port map (
+			I => AOW,
+			X => BCD0,
+			Y => BCD1);
 	disp: component bcd2disp
 		port map (
 			CLK => CLK_T(18),
-			N0 => X,
-			N1 => X,
-			N2 => "0000",
-			N3 => "0000",
+			N0 => "0000",
+			N1 => "0000",
+			N2 => BCD1,
+			N3 => BCD0,
 			DD => DD,
 			DS => DS);
 end Behavioral;